18808413

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 28557312

約数和(自身を除く): 9748899

約数列:

[1, 3, 13, 31, 39, 47, 93, 141, 331, 403, 611, 993, 1209, 1457, 1833, 4303, 4371, 10261, 12909, 15557, 18941, 30783, 46671, 56823, 133393, 202241, 400179, 482267, 606723, 1446801, 6269471, 18808413]

約数ペア:

[(1, 18808413), (3, 6269471), (13, 1446801), (31, 606723), (39, 482267), (47, 400179), (93, 202241), (141, 133393), (331, 56823), (403, 46671), (611, 30783), (993, 18941), (1209, 15557), (1457, 12909), (1833, 10261), (4303, 4371)]